Results 71 to 80 of about 4,374,982 (417)

Accuracy of patient dose estimation in cone beam computed tomography in breast irradiation by size‐specific dose estimates with position correction

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract This study aims to investigate the effects of the position correction of size‐specific dose estimates (SSDE) on patient dose estimation in cone beam computed tomography (CBCT). The relationship between the phantom position and absorbed dose in the right breast was studied using optically stimulated luminescence dosimeters and a simulated human
Hiroyuki Ueno   +3 more
wiley   +1 more source

Implications of the Harmonization of [18F]FDG-PET/CT Imaging for Response Assessment of Treatment in Radiotherapy Planning

open access: yesTomography, 2022
The purpose of this work is to present useful recommendations for the use of [18F]FDG-PET/CT imaging in radiotherapy planning and monitoring under different versions of EARL accreditation for harmonization of PET devices.
Elisa Jiménez-Ortega   +6 more
doaj   +1 more source

Hounsfield-based Automatic Evaluation of Volumetric Breast Density on Radiotherapy CT-Scans [PDF]

open access: yesarXiv, 2021
Radiotherapy is an integral part of treatment for many patients with breast cancer. However, side effects can occur, Example fibrosis or erythema. If patients at higher risks of radiation induced side effects could be identified before treatment, they could be given more individual information about the risks and benefits of radiotherapy.
arxiv  

Optimization Strategies for Beam Direction and Dose Distribution Selection in Radiotherapy Planning [PDF]

open access: yesarXiv, 2023
Radiotherapy planning is a critical aspect of cancer treatment, where the optimal selection of beam directions and dose distributions significantly impacts treatment efficacy and patient outcomes. Traditionally, this process involves time-consuming manual trial-and-error methods, leading to suboptimal treatment plans.
arxiv  

Intensity-modulated stereotactic radiosurgery for arteriovenous malformations: guidance for treatment planning. [PDF]

open access: yes, 2014
BackgroundStereotactic Radiosurgery (SRS) is a common tool used to treat Arteriovenous Malformations (AVMs) in anatomical locations associated with a risk of surgical complications.
Gete, Ermias   +5 more
core   +3 more sources

Factors Affecting Implementation of Radiological Protection Aspects of Imaging in Radiotherapy

open access: yesApplied Sciences, 2023
Dramatic improvements in radiotherapy equipment have allowed radiation fields to be conformed to tumours for more accurate treatment. Successful delivery often requires imaging at every treatment fraction, a method known as image guided radiation therapy
Colin John Martin   +6 more
doaj   +1 more source

Assessment of image quality and dose calculation accuracy on kV CBCT, MV CBCT, and MV CT images for urgent palliative radiotherapy treatments. [PDF]

open access: yes, 2016
A clinical workflow was developed for urgent palliative radiotherapy treatments that integrates patient simulation, planning, quality assurance, and treatment in one 30-minute session.
Barani, Igor   +9 more
core   +1 more source

Skin Dosimetric Comparison of 3DCRT and IMRT Planning for Post-Mastectomy Breast Radiotherapy

open access: yesAtom Indonesia, 2022
Breast cancer is the most common cancer for incidence and mortality among females globally and in Indonesia. Mastectomy is still the most common surgery for female breast cancer in Indonesia.
F. K. Hentihu, A. K. Anto, R. S. Nugroho
doaj   +1 more source

Radiotherapy planning for glioblastoma based on a tumor growth model: Improving target volume delineation [PDF]

open access: yes, 2013
Glioblastoma are known to infiltrate the brain parenchyma instead of forming a solid tumor mass with a defined boundary. Only the part of the tumor with high tumor cell density can be localized through imaging directly.
Ayache, Nicholas   +6 more
core   +4 more sources

Treatment planning in molecular radiotherapy

open access: yesZeitschrift für Medizinische Physik, 2013
In molecular radiotherapy a radionuclide or a radioactively labelled pharmaceutical is administered to the patient. Treatment planning therefore comprises the determination of activity to administer. This administered activity should maximize tumour cell sterilization while minimizing normal tissue damage.
Gerhard Glatting   +2 more
openaire   +3 more sources

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